This page explains how Ivan D Sonido (USATT# 93945)'s rating went from 1145 to 1278 at the LATTA 1st Annual DELTA Rescue Charity Open held on - 21 Feb 2015. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.